Specifications

CHASSIS
x
Unserviceable
Judgement
6
May
be used when
minor
Rust
should be
removed with
110 emery paper
Race and
roUer
u
u
Cause
l
al l
U
8
8jiS
Q
oo
ti
l
U
CIl
Flaking
x
Service tife due
to
roUing fatigue
However
this
symptom
occurs
before
the service life The
following
causes
are considered
Abnormal
load overload
Improper
handling
or
improper
installation
Crack
x
x
x Excessive tightening
Gap
is
excessive
and a
considerable shock
is received from
the
outside
Rapid
heat
generation
on
the
race
due to
creep
RaUen
bite the
supporter
due to seizure
Abnormal
thrust load
Tapped
with a hammer
while
removing
Seizure x
x
x
In
the most
cases seizure
occurs as
the result of
grown
discoloring
or
flaking
SClalch
6
6 6
Shock
is
given
carelessly
during
installation
Bit
foreign
mailer
Recess or wear
6
6
6
Careless
installation removal or
other
handling
scar due
to
made
by pressing
striking
or
striking
Recess
made by
bit
foreign
matter
Wear
6
6
6
Poor
lubricant quality
or deteriorated lubricant
Intrusion of
dust Fitted surface
is worn
remarkably
Wear due to
excessive
preliminary pressure
Biting
6
6
6
Excessive
preliminary
pressure
or
faulty
lubrication
Fretting
6 6
The
fitted
part
is discolored
to
brown
or black
6
Fretting
corrosion
rust
on
fitted
part
means
fine relative
slip
on
metal
contact surface
FA B